Lock for switch-stands.



L. G. GOLEMAN.

LOOK FOR SWITCH STANDS.

APPLICATION P-ILED MAR.13, 1014.

Patented Nov. 10, 1914.

2 SHBETSSHBET 1.

L. G. COLEMAN.

LOCK FOB. SWITCH STANDS.

APPLIGATION FILED MAR.13,1914.

1,1 1 6,388, Patented Nov. 10, 19145 2 SHEETS-SHEET 2.

24 35 z 7 53: x16 25 U26 45 20 20 15 3 22 64 2 /'.s. Z/s g7 31 .E 2362g- THE NORRIS PETERS C0. PHOTO-LITHO., WASHING ION. D C.

LOCKETT G. COLEMAN, OF OTTAWA, ONTARIO, CANADA.

LOCK FOR SWITCH-swamps.

Specification of Letters Patent.

Patented Nov. 10, 1914.

Application filed March 13, 1914. Serial No. 824,512.

To all whom it may concern:

Be 1t known that I, Loonn'r'r Gwm (Tonn- MAN, a citizen of the UnitedStates, and

resident of the city of Ottawa. Province of :Ontario, Dominion ofCanada, have invented certain new and useful Improvements in Locks forSwitch-Stands, otwhich the following is the specification.

This invention relates to switch stands any position without the aid ofthe key, to

facilitate the removing of the working parts of the look from theincasing frame in which they are located, and other objects which willappear hereafter, and it consists essentially of the improvedconstruction hereinafter described in detail in the accompanyingspecification and drawing.

In the drawings,Figure 1 1s a side elevation of the switch stand withthe lever in closed or locked position. Fig. Qtis a front elevation ofthe same. Fig.3 is an enlarged side elevation with the lever partlyraised. Fig. t is aplan view of part of the lever with the lock inposition. Fig. 5 is a plan of the working parts of the look, as seenfrom the top. Fig. 6 is a sectional. elevation of the lock, on the line2-2, of Fig, 1. Fig. 7 is a sectional elevation of the lock, on the line3-3 of Fig. 4.

Like letters of reference refer to like parts in the several drawings.

Referring to the drawings, A. represents the switch stand of any well.known or usual construction, B the lever thereof. In accordance with thepresent invention the spring lock 0 is attached to the lever B, thetongue D being mounted on the switch stand and designed to engage withsaid lock.

. The form of spring lock which may be used for the purpose of thepresent invention is shown in detail in Figs. 4 to 7. Referrin to thesefigures, E represents the casing of suitable form designed to house orcontain the working parts of the lock, such casing being formed integralwith the lever B. The lever B is constructed with bifurcated arms 10 and11, the casing E being located between such arms, and 1n a positionintermediate of the ends of the lever. This casing E is constructed. 1nthe following manner :The side members are formed by the arms 10 and 11while the ends 14 and the top 13 are formed integral therewith, thecasing being completed by the removable bottom plate 15 provided with aslot 21 therein designed to engage with the tongue D and upwardlyextending flange members 16 formed at substantially right angles to thesaid bottom plate and adapted to engage with and be located between thearms 10 and 11 of the lever B, such flanges being provided with orifices20 extending therethrough. A key hole 17 is provided.

in the top 13 of the casing while orifices 18 and 19 are provided in thearms '10 and 11 and designed to register with the orifices 20 in theflanges 1.6. The working parts of the lock C are now located inthehottom plate 15 which is provided with an upwardly extending guideplate 22 havinga slot 23 therethrough which acts as a guide for thesliding latch 24, the ends of said latch being connected by pins 25 and26 which are supported in a guide 27, the rear ends of the pins beingconnected to sliding piece 28, the latch being normally spring pressedoutwardly by means of spiral oom pression springs 29. and .30 whichextend between the latch and the guide 97. The

the ends 36 and 37 of the said member being designed to engage with thesliding piece This bottom plate 15 with the several working parts of thelock mounted thereon is placed in position, the spindle 31 being locatedcentrally in the upper enlarged end of the keyhole 17 the orifices 20 inthe flanges 16 registering with the orifices 18 and 19 in the arms 10and 11. The assembled lock is secured in position by the pins 10engaging with the orifices 18, 19 and 20, the ends of the pins 10 beingriveted or secured in any other suitable manner.

The tongue I) is formed with an aperture ll into which the sliding latch24 is adapted to fit, the said ends of the latch being beveled so thatit will lock automatically. The lock is operated by a key adapted to fitover the spindle 31 and engage with the flange and stop 34 whereby theconnecting mem ber 32 is adapted to be drawn backward against the actionof the springs 29 and 30 thereby withdrawing the sliding latch 24 fromengagement with the tongue D.

If in the event of the lock going wrong or the key being lost or fromany other cause, it is found desirable to remove the working parts ofthe lock, this is done by withdrawing the pins lO thereby allowing ofthe lever B being elevated and allowing any repairing of the lock beingeffected. By the use of such a casing it will be seen that should thelock go out of repair the switch stand can still be operated during thetemporary removal of the said lock.

As many changes could be made in the above construction and manyapparently widely different embodiments of my invention, within thescope of the claims, constructed without departing from the spirit orscope thereof, it is intended that all mat-' ter contained in theaccompanying specification and drawings shall be interpreted asillustrative and not in a limiting sense.

lVhat I claim as my invention-is:

1. In a lock for switch stands, the combination with a switch stand anda lever pro vided with a bifurcated end, of a tongue on the stand, acasing provided with a key hole in the top side,'such casing beinglocated intermediate of the ends of'the lever formed integral with thebifurcated parts thereof, a bottom plate designed to engage with saidcasing, a spring latch lock mounted on the said bottom plate, and meansof securing the said plate in position, as and for the purposespecified.

2. In a lock for switch stands, the combination with a switch stand anda lever provided with a bifurcated end, of a tongue on the stand, acasing provided with a key hole at the top side, such casing beinglocated intermediate of the ends of the lever formed integral with theparts thereof, a bottom plate having flanges formed at substantiallyright angles thereto, said bottom plate being designed to engage withthe said casing, the said flanges engaging with'the inner faces of thesaid bifurcated parts, a spring latch lock mounted on the said bottomplate, and means of seorifices in. the said casing, a spring latch.

lock mounted on the said bottom plate, and means of securing the saidplate in position consisting of pins adapted to engage with the orificesin the said lever and the orifices in the said flanges, substantiallyas"'described.

4. In a lock for switch stands, the combination with a switch stand, ofa lever provided with a bifurcated end, a tongue on the stand, a casingprovided with a key hole in the top side, such casing being formedintegral with the bifurcated parts, a bottom plate designed to engagewith the said casing, a spring latch lock mounted on the said bottomplate, suchlock consisting of an upwardly extending guide plate formedat substantially right angles to the said bottom plate, and providedwith a slot, a sliding latch provided with pins, a sliding piece,

springs surrounding said pins and forcing the latch outwardly, a keyspindle, a connecting member on the key spindle adapted to engage thesliding piece, substantially as described. a,

In witness whereof I have hereunto set?! my hand in the presence of twowitnesses. LOCKETT G. COLEMAN.

Witnesses:

P. M. GARROW, B. A. LEAMY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of latents,

Washington, D. G.

